/Engine/Source/Runtime/Engine/Public/IStereoLayers.h
enum ELayerFlags { LAYER_FLAG_TEX_CONTINUOUS_UPDATE = 0x00000001, LAYER_FLAG_TEX_NO_ALPHA_CHANNEL = 0x00000002, LAYER_FLAG_QUAD_PRESERVE_TEX_RATIO = 0x00000004, LAYER_FLAG_SUPPORT_DEPTH = 0x00000008, LAYER_FLAG_TEX_EXTERNAL = 0x00000010, LAYER_FLAG_HIDDEN = 0x00000020, }